[lkml]   [2007]   [Oct]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: howto boost write(2) performance?
On Tuesday 09 October 2007 23:50, Michael Stiller wrote:
> Hi list,
> i'm developing an application (in C) which needs to write about
> 1Gbit/s (125Mb/s) to a disk array attached via U320 SCSI.
> It runs on Dual Core 2 Xeons @2Ghz utilizing kernel
> I buffer the data in (currently 4) 400Mb buffers and use write(2) in a
> dedicated thread to write them to the raw disk (no fs).
> The write(2) performance is not good enough, the writer threads take to
> much time, and i ask you for ideas, howto to boost the write
> performance.

The kernel really cannot sustain 125MB/s? I assume the disk
array is capable?

Where is the bottleneck? Does it keep all disks busy, or are
the CPUs overloaded?
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2007-10-10 09:55    [W:0.061 / U:0.048 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site